Module 6 Quiz: Functions v2

An elk was clocked running 45 miles per hour. Which equation shows the relationship between the distance, y, and time, x, that the elk ran?

• y = 5x + 40

• y = 45x

• y = x + 45

Tags

CCSS.6.EE.C.9

The graph of a linear relationship passes through (0, 3) and (3, 9). Which is an equation for this linear relationship?

• y = 3x

• y = 2x + 3

• y = x + 6

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which mapping diagram represents a relationship that is a function?

• Mapping A

• Mapping B

• both Mapping A and Mapping B

Tags

CCSS.8.F.A.1

Which graph shows a person walking at an increasing speed then slowing down because he or she is tired?

• Graph 1

• Graph 2

• Graph 3

Tags

CCSS.HSF.IF.B.4

Which of the following is not a function?

• {(2, 1), (4, 3), (6, 5), (8, 7)}

• {(2, 1), (4, 1), (6, 5), (5, 4)}

• {(2, 1), (4, 3), (6, 5), (2, 7)}

Tags

CCSS.8.F.A.1

A cell phone company charges $50 for the phone plus a monthly service charge of $30. The equation y = 30x + 50 gives the cost y after x months. Which is true of the relationship between x and y?

• It is linear and proportional.

• It is linear and nonproportional.

• It is not linear.

Tags

CCSS.8.F.A.3

The cost in dollars, y, to participate x days in a bike tour is a linear function. Lin's bike tour is described by the equation y = 5x + 50. The cost of Max's bike tour is $120 for a 14-day bike tour. If both Lin and Max take 14-day tours, whose bike tour costs less?

• Lin's

• Max's

• The cost is the same for both.

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Determine whether the relationship shown in the table is a function. Write function or not a function, then explain.

Tags

CCSS.8.F.A.1

What is the slope of this line? Explain how you found it.

Tags

CCSS.8.EE.B.5

Fine the equation of the line shown in the graph. Then use it to find y when x=9.